Construction at Watts Bar began in 1973 and was completed in 1996.
arrow The winter net dependable generating capacity is 1,167 megawatts.

In September 2000 Watts Bar Unit 1 set a record for continuous operation of TVA reactors of similar design. Unit 1 operated for 512 consecutive days, breaking the old mark of 468 days set at TVA’s Sequoyah Unit 1 in February 2000.